ライフサイエンスコーパス: colonography

1 creening for colorectal cancer with FS or CT colonography.

2 pared with placebo in patients undergoing CT colonography.

3 formed in patients scheduled for elective CT colonography.

4 in 131 lesions on colonoscopy after final CT colonography.

5 abdominal radiologists with expertise in CT colonography.

6 ective expert localization of polyps with CT colonography.

7 te provided excellent colon cleansing for CT colonography.

8 ine endorses the use of computed tomographic colonography.

9 with FS and 298 of 980 (30.4%) underwent CT colonography.

10 tandardization, and (7) implementation of CT colonography.

11 nding issues related to computed tomographic colonography.

12 wer tests, such as computed tomographic (CT) colonography.

13 tual navigation and polyp registration at CT colonography.

14 patients had cardiac events subsequent to CT colonography.

15 , 59.2 years) with 338 polyps detected at CT colonography.

16 ly improved with tagging preparations for CT colonography.

17 in readers' estimations of polyp size at CT colonography.

18 st, current, and potential future role of CT colonography.

19 her any important findings were missed at CT colonography.

20 tients; 21 (21.4%) of 98 were detected at CT colonography.

21 lesion larger than 10 mm was detected at CT colonography.

22 assumed to be residual fecal material at CT colonography.

23 dergoing screening computed tomographic (CT) colonography.

24 all potential carpet lesions detected at CT colonography.

25 during colonic insufflation required for CT colonography.

26 , location, and morphologic appearance at CT colonography), 181 (10%) were not confirmed with initial

27 ives were invited to undergo noncathartic CT colonography (200 mL of diatrizoate meglumine and diatri

28 een 1995 and 1998, 480 patients underwent CT colonography; 467 patients were available for assessment

29 utcomes included total pain and burden of CT colonography (5-point scale), the most burdensome aspect

30 uring CT colonography and may improve the CT colonography acceptance, especially for patients with a

31 Prospective studies of adults undergoing CT colonography after full bowel preparation, with colonosc

32 s (507 men, 475 women) underwent low-dose CT colonography after noncathartic bowel preparation (iodin

33 .03) and were more willing to undergo PET/CT colonography again (36/43 [84%; 95% CI, 73%-95%] vs. 31/

34 stration by using an algorithm at initial CT colonography allowed prediction of endoluminal polyp loc

35 r the past decade, computed tomographic (CT) colonography (also known as virtual colonoscopy) has bee

36 Computed tomographic (CT) colonography, also called virtual colonoscopy, is an evo

37 Computed tomographic (CT) colonography, also known as virtual colonoscopy or CT co

38 e identified as diminutive at the initial CT colonography and 12.6% (26 of 207) were missed.

39 All participants underwent CT colonography and colonoscopy on the same day.

40 CT colonography and colonoscopy results were compared for l

41 Matching between findings from CT colonography and colonoscopy was allowed when lesions we

42 CT colonography and colonoscopy were performed in 182 patie

43 l discomfort was canvassed after both PET/CT colonography and colonoscopy.

44 The diagnostic performance for standalone CT colonography and combined PET/CT colonography was compar

45 nge, 43-92 years), each of whom underwent CT colonography and DXA within a 6-month period (between Ja

46 of rectal cancer, as well as the place of CT colonography and fecal tests in post-CRC surveillance.

47 e acceptability of computed tomographic (CT) colonography and flexible sigmoidoscopy (FS) screening a

48 Conclusion CT colonography and FS screening are well accepted, but fur

49 relevant reduction of maximum pain during CT colonography and may improve the CT colonography accepta

50 s; 505 women, 728 men) underwent same-day CT colonography and optical colonoscopy procedures.

51 with oral contrast agents, and subsequent CT colonography and segmentally unblinded colonoscopy.

52 Findings at CT colonography and subsequent colonoscopy were recorded, a

53 , patients who had insurance coverage for CT colonography and were due for CRC screening had a 48% gr

54 ded 63 consecutive patients who underwent CT colonography and who waived informed consent.

55 n the cohort undergoing colonoscopy after CT colonography and/or surgery (there were no false-negativ

56 polyp location automatically at follow-up CT colonography) and the consistency method (polyp coordina

57 rast barium enema, computed tomographic (CT) colonography, and magnetic resonance (MR) colonography-f

58 A radiologist, experienced in CT colonography, and nuclear medicine physician in consensu

59 ns of contrast material, scanned by using CT colonography, and subjected to electronic subtraction cl

60 interpretations at computed tomographic (CT) colonography are due to observer error.

61 Aortic calcification scores at CT colonography are significantly associated with establish

62 , the barium enema has been supplanted by CT colonography as the major imaging test in colorectal can

63 assess the behaviour of such polyps with CT colonography assessments.

64 CT colonography at 5- and 10-year screening intervals and c

65 CT colonography at 5- and 10-year screening intervals was m

66 152 consecutive adults undergoing initial CT colonography at a tertiary center were reviewed in this

67 50 seniors: mean age, 69 years) underwent CT colonography at an outpatient facility.

68 ean age, 59.8 years) undergoing screening CT colonography at two centers in this institutional review

69 routine colorectal cancer screening with CT colonography at two medical centres in the USA.

70 (90.6%) FS attendees, 237 of 298 (79.5%) CT colonography attendees, and 182 of 299 (60.9%) CT colono

71 atives was 99.1% among FS and 93.3% among CT colonography attendees.

72 nts were enrolled in a single-institution CT colonography-based screening program (from 2004 to 2011)

73 Conclusion Serrated lesions are seen at CT colonography-based screening with a nondiminutive preval

74 e serrated lesions (>/=6 mm) were seen at CT colonography-based screening with a prevalence of 3.1% (

75 ice, polyps prospectively identified with CT colonography but not confirmed with subsequent nonblinde

76 Computed tomographic colonography by these methods is not yet ready for wides

77 CT colonography by-polyp sensitivity for nonadenomatous les

78 g 373 patients with a positive finding at CT colonography, CAD marked an additional 15 polyps of 6 mm

79 These issues must be resolved before CT colonography can be advocated for generalized screening

80 CT colonography can effectively depict carpet lesions.

81 n (CAD) applied to computed tomographic (CT) colonography can help improve sensitivity of polyp detec

82 colonic diseases, functional;" "diagnosis;" "colonography;" "computed tomographic (CT)") and the date

83 ribed, and combining PET with nonlaxative CT colonography could improve accuracy.

84 ervals (CIs) for the relationship between CT colonography coverage and CRC screening.

85 Similarly, patients with CT colonography coverage had a greater likelihood of being

86 As a primary colorectal screening tool, CT colonography covered by third-party payers has an accept

87 nsional (3D) endoluminal computed tomography colonography (CTC) after retrograde fly-through, combine

88 tic yield from parallel computed tomographic colonography (CTC) and optical colonoscopy (OC) screenin

89 olonoscopy if "virtual" computed tomographic colonography (CTC) became a widely accepted modality for

90 PURPOSE OF REVIEW: Computed tomography colonography (CTC) continues to mature and evolve as a n

91 mical testing (FIT), or computed tomographic colonography (CTC) every 5 years.

92 orectal cancer with computerized tomographic colonography (CTC) instead of colonoscopy.

93 conclusions on whether computed tomographic colonography (CTC) is an acceptable screening option, an

94 e of colorectal cancer; computed tomographic colonography (CTC) is an alternative, less invasive test

95 Computed tomographic colonography (CTC) is used to examine the colorectum and

96 Computed tomographic colonography (CTC) might be a more sensitive and accepta

97 cal colonoscopy (OC) or computed tomographic colonography (CTC) requires a laxative bowel preparation

98 Seven studies of computed tomographic colonography (CTC) with bowel preparation demonstrated p

99 Computed tomographic colonography (CTC), also known as virtual colonoscopy, h

100 st barium enema (ACBE), computed tomographic colonography (CTC), and colonoscopy, to detect colon pol

101 magnetic resonance (MR), computed tomography colonography (CTC), and positron emission tomography (PE

102 without stool testing, computed tomographic colonography (CTC), or colonoscopy starting at age 45, 5

103 Computed tomography colonography (CTC), particularly using noncathartic tech

104 CT colonography (CTC), when used in CRC screening, effectiv

105 rmission was obtained to use deidentified CT colonography data for this prospective reader study.

106 Ten radiologists each read 25 CT colonography data sets (12 men, 13 women; mean age, 61 y

107 pectively obtained computed tomographic (CT) colonography data sets by using consensus reading (three

108 Twenty CT colonography data sets from 14 men (median age, 61 years

109 obtained from all institutions for use of CT colonography data sets in this study.

110 ective study was performed by using DICOM CT colonography data sets obtained in 20 adult patients.

111 Forty-seven computed tomographic (CT) colonography data sets were obtained in 26 men and 10 wo

112 ed from all donor institutions for use of CT colonography data sets.

113 orithm by using two colonoscopy-confirmed CT colonography data sets.

114 mplication rates were obtained by using a CT colonography database and review of medical records.

115 or larger adenoma at optical colonoscopy, CT colonography depicted a nonadenomatous polyp that was 6

116 Diagnostic studies evaluating CT colonography detection of colorectal cancer were assesse

117 Computed tomographic colonography detects neoplasias with high levels of sens

118 gists reviewed two- and three-dimensional CT colonography displays and graded image quality with a fi

119 Two-dimensional and 3D CT colonography displays were generated from data obtained

120 Although MR colonography does not require ionizing radiation, the ra

121 ncer screening in the United States, with MR colonography emerging as another viable option in Europe

122 ar-old subjects in the United States with CT colonography every 5 or 10 years were compared with thos

123 The second-tier tests include CT colonography every 5 years, the FIT-fecal DNA test every

124 nd from data obtained at in vivo clinical CT colonography examinations performed in 10 patients (five

125 eos extracted from computed tomographic (CT) colonography examinations.

126 CT colonography exceeds the performance of nonendoscopic ap

127 tivity of 0.90 (i.e., 90%) indicates that CT colonography failed to detect a lesion measuring 10 mm o

128 he 144 lesions were categorized as likely CT colonography false-positive findings (no further action)

129 ed (ie, despite a priori knowledge of the CT colonography findings) OC require additional review beca

130 ere directly compared against the initial CT colonography findings.

131 (non- or full-laxative computed tomographic colonography, flexible sigmoidoscopy, or colonoscopy).

132 ing informed consent from the readers, 12 CT colonography fly-through examinations that depicted eigh

133 ng 40% (31 of 78) of those with OC and/or CT colonography follow-up.

134 rver error), the per-polyp sensitivity of CT colonography for adenomas 10.0 mm or larger increased to

135 etrospective biomechanical CT analysis of CT colonography for colorectal cancer screening provides a

136 The sensitivity of CT colonography for colorectal cancer was 96.1% (398 of 414

137 Conclusion Insurance coverage of CT colonography for CRC screening was associated with a gre

138 rance coverage for computed tomographic (CT) colonography for CRC screening.

139 oscopy, the accuracy of computed tomographic colonography for detection of large lesions appears to b

140 The actual specificity of screening CT colonography for extracolonic findings in clinical pract

141 the application of computed tomographic (CT) colonography for screening the asymptomatic average-risk

142 -enhanced microcomputed tomography (microCT) colonography for the noninvasive detection of colonic tu

143 en actual polyp size and that measured at CT colonography) for 2D transverse, 2D coronal, and 3D endo

144 ted tomographic (CT) virtual colonoscopy (CT colonography) for detecting polyps varies widely in rece

145 T) colonography, and magnetic resonance (MR) colonography-for colorectal cancer screening.

146 Although much about CT colonography has already been learned, more remains to b

147 c examination, and computed tomographic (CT) colonography has been studied extensively but the report

148 In recent years, CT colonography has been validated as an effective tool for

149 onizing radiation, the radiation dose for CT colonography has decreased substantially, and regular sc

150 CT colonography has superior patient acceptability compared

151 The performance of CT colonography has varied widely among published studies t

152 CT colonography helped detect eight of nine subjects with p

153 Overall, CT colonography helped identify 17 of 22 subjects with poly

154 greater likelihood of being screened with CT colonography (HR, 8.35; 95% CI: 7.11, 9.82) and with col

155 me of more than 180 mm(3) at surveillance CT colonography identified proven advanced neoplasia (inclu

156 ial expertise in colonography interpreted CT colonography images of 107 patients (60 with 142 polyps)

157 Experienced readers interpreted the CT colonography images unassisted and then reviewed all col

158 software system was applied to screening CT colonography in 1638 women and 1408 men (mean age, 56.9

159 arge colorectal polyps were identified at CT colonography in 43 (3.9%) of 1110 patients.

160 icians with regard to the current role of CT colonography in clinical practice.

161 , and the accuracy of test performance of CT colonography in community settings remain uncertain.

162 gh rates of false-positive diagnoses with CT colonography in exchange for diagnosis of extracolonic m

163 acceptability of combined nonlaxative PET/CT colonography in patients at higher risk of colorectal ne

164 The role of CT colonography in screening asymptomatic patients is contr

165 ngs augment published data on the role of CT colonography in screening patients with an average risk

166 erences in sensitivity and specificity of CT colonography in the two age cohorts (age < 65 years and

167 efit in the detection of 6-9-mm polyps at CT colonography in this cohort.

168 endoscopic ultrasound, fecal testing and CT colonography in this setting.

169 ng interpretation of 3D three-dimensional CT colonography in this study occurred in either the discov

170 matic adults undergoing routine screening CT colonography, including about one invasive CRC per 500 c

171 ained in CT but without special expertise in colonography interpreted CT colonography images of 107 p

172 Computed tomographic colonography is a new and noninvasive method to evaluate

173 Computed tomographic (CT) colonography is a noninvasive option in screening for co

174 Virtual colonoscopy or computed-tomography colonography is a promising new method for colorectal ca

175 CT colonography is a safe and effective screening modality

176 ts at average risk for colorectal cancer, CT colonography is a sensitive and specific screening test

177 rrent data suggest that computed tomographic colonography is a viable colon cancer screening modality

178 Noncathartic CT colonography is an effective screening method in first-d

179 etection (CAD) for computed tomographic (CT) colonography is as effective as optical colonoscopy for

180 settings with sufficient quality control, CT colonography is as sensitive as colonoscopy for large ad

181 diagnostic indications, computed tomography colonography is emerging as a potential frontline colore

182 Computed tomographic colonography is gaining momentum as a potential primary

183 CT colonography is highly sensitive for colorectal cancer,

184 Computed tomographic colonography is highly specific, but the range of report

185 CT colonography is performed routinely for some indications

186 but the clinical role of computed tomography colonography is rapidly evolving.

187 Fortunately, CT colonography is significantly (P <.01) less sensitive in

188 aneous PET acquisition during nonlaxative CT colonography is technically feasible, is well tolerated,

189 on Faster navigation speed at endoluminal CT colonography led to progressive restriction of visual se

190 -sided lesions were detected at follow-up CT colonography, many of which were flat, serrated lesions.

191 identification for computed tomography (CT) colonography Materials and Methods Institutional review

192 prevalence of colorectal cancer, primary CT colonography may be more suitable than OC for initial in

193 Computed tomographic colonography may have harms resulting from low-dose ioni

194 cent studies that show the sensitivity of CT colonography may not be as great when performed and the

195 were less satisfied than those undergoing CT colonography (median score of 61 and interquartile range

196 uartile range [IQR], 2-7) than during PET/CT colonography (median, 5; IQR, 3-7; P = 0.03) and were mo

197 feasible in live mice by using this microCT colonography method.

198 Computed tomographic colonography missed 2 of 8 cancers.

199 We investigated whether magnetic resonance colonography (MRC) can be used to screen for colorectal

200 del of colon cancer using magnetic resonance colonography (MRC).

201 o undergo either colonoscopy (n = 362) or CT colonography (n = 185) received a validated questionnair

202 All attendees and a sample of CT colonography nonattendees (n = 299) were contacted for a

203 ography attendees, and 182 of 299 (60.9%) CT colonography nonattendees responded.

204 CT colonography nonattendees were less likely to be men (OR

205 fecal DNA technology and computed tomography colonography now compete with colonoscopy as viable colo

206 The primary end point was detection by CT colonography of histologically confirmed large adenomas

207 or larger were prospectively reported at CT colonography, of which 222 (94.9%; 95% CI: 91.3%, 97.0%)

208 ied with higher confidence at prospective CT colonography (on a 3-point confidence scale: mean, 2.8 v

209 CT colonography-optical colonoscopy concordance and proxima

210 ancer and prevent cancer from developing (CT colonography or colonoscopy).

211 Total CT colonography pain and burden were also lower with alfent

212 agnesium citrate should be considered for CT colonography, particularly in patients at risk for phosp

213 CT colonography performance estimates from the trial were i

214 ) were depicted at computed tomographic (CT) colonography performed in 36 patients (26 men, 10 women;

215 patients underwent computed tomographic (CT) colonography prior to colonoscopy.

216 Overall, 19.5% of polyps detected at CT colonography proved to be advanced neoplasia and did not

217 y lesions of 6 mm or larger identified at CT colonography (rectum-to-splenic flexure) and (b) of unde

218 current publicity, many issues concerning CT colonography remain.

219 Radiologists trained in CT colonography reported all lesions measuring 5 mm or more

220 Radiologists certified in CT colonography reported lesions 5 mm in diameter or larger

221 malities were classified according to the CT Colonography Reporting and Data System (C-RADS).

222 have been incorporated into the consensus CT Colonography Reporting and Data System (C-RADS).

223 orized by using the computed tomography (CT) colonography reporting and data system (C-RADS).

224 Polyp location, CT Colonography Reporting and Data System categorization, a

225 ch as distress), with patients undergoing CT colonography reporting less intense negative affect.

226 masslike findings in the sigmoid colon at CT colonography, representing chronic diverticular disease

227 xamined intra- and extracolonic organs or CT colonography restricted to the colon, across different s

228 e normal in 29 (42.6%) of 68 patients; at CT colonography, results were correctly identified as norma

229 However, combined PET/CT colonography review improved per-patient positive predic

230 Characteristics of the CT colonography scanner, including width of collimation, ty

231 ximum linear sizes of polyps in vivo with CT colonography scans at baseline and surveillance follow-u

232 Positive rates for large polyps at repeat CT colonography screening (3.7%) were lower compared with t

233 93 men) patients have returned for repeat CT colonography screening (mean interval, 5.7 years +/- 0.9

234 mm polyps detected and removed at initial CT colonography screening (without surveillance).

235 mfort from bowel preparation may increase CT colonography screening acceptability.

236 detected at repeat computed tomographic (CT) colonography screening after initial negative findings a

237 .2 years; age range, 50-97 years) undergoing colonography screening between April 2004 and December 2

238 The demand for CT colonography screening from primary care physicians and

239 n = 577) from the University of Wisconsin CT colonography screening program (n = 5176) was undertaken

240 Results Repeat CT colonography screening was positive for lesions 6 mm or

241 %) adults (compared with 14.3% at initial CT colonography screening, P = .29).

242 ; mean age, 58.1 years) underwent primary CT colonography screening.

243 eening after initial negative findings at CT colonography screening.

244 Materials and Methods Among 5640 negative CT colonography screenings (no polyps >/= 6 mm) performed b

245 Computed tomographic colonography seems as likely as colonoscopy to detect le

246 For large neoplasms, mean estimates for CT colonography sensitivity and specificity among the older

247 For large neoplasms in the younger group, CT colonography sensitivity and specificity were 0.92 (95%

248 CT colonography sensitivity for polyps 6 mm or larger was 9

249 contrast barium enema or computed tomography colonography should be performed preoperatively, and col

250 is feasibility study suggest that CAD for CT colonography significantly improves per-polyp detection

251 CAD for CT colonography significantly increases per-patient and per

252 parity in results of reported large-scale CT colonography studies in asymptomatic subjects may be exp

253 patients with neoplastic carpet lesions, CT colonography studies were analyzed to determine maximal

254 CT colonography studies were scored according to presence o

255 The odds ratio for a growing polyp at CT colonography surveillance to become an advanced adenoma

256 mediate optical colonoscopy or short-term CT colonography surveillance.

257 al colonoscopy and 46 (60%) of whom chose CT colonography surveillance.

258 views, both in vitro and in vivo, for the CT colonography system evaluated.

259 Specific CT colonography techniques were cataloged.

260 n, only a few studies examined the newest CT colonography technology.

261 Sizes measured at CT colonography tend to lie between those measured at optic

262 d with bowel preparation was higher among CT colonography than FS attendees (OR, 2.77; 95% confidence

263 nts where they chose between unrestricted CT colonography that examined intra- and extracolonic organ

264 linically unsuspected cancers detected at CT colonography that were identified at retrospective revie

265 s with left-sided-only polyps detected at CT colonography, the additional yield of complete optical c

266 patients with positive findings at repeat CT colonography, the findings were directly compared agains

267 flexible sigmoidoscopy, computed tomography colonography, the guaiac-based fecal occult blood test,

268 ses (>/=3 cm) prospectively identified at CT colonography (there were two nonneoplastic rectal false-

269 cedures were performed on the same day as CT colonography, thereby avoiding the need for repeat bowel

270 endoluminal polyp location at subsequent CT colonography, thereby facilitating detection of known po

271 nical and technical advances have allowed CT colonography to advance slowly from a research tool to a

272 All three models predict CT colonography to be more costly and less effective than n

273 ege of Radiology Imaging Network National CT Colonography Trial provided informed consent, and approv

274 contrast barium enema), computed tomographic colonography (virtual colonoscopy) and stool-based molec

275 ic referral rate for positive findings at CT colonography was 6.4% (71 of 1110 patients).

276 Computed tomographic colonography was accurate in detecting adenomas 10 mm or

277 CT colonography was also performed on 10 control subjects w

278 andalone CT colonography and combined PET/CT colonography was compared with the reference colonoscopy

279 CT colonography was followed by conventional colonoscopy, p

280 The sensitivity of CT colonography was heterogeneous but improved as polyp siz

281 The major contributor to error at CT colonography was observer perceptual error, while observ

282 CT colonography was performed in 500 men (mean age, 62.5 ye

283 Low-dose CT colonography was performed with 64-detector CT by using

284 ceiver-operating-characteristic curve for CT colonography were 0.90+/-0.03, 0.86+/-0.02, 0.23+/-0.02,

285 ositive and negative predictive values of CT colonography were assessed for detecting subjects with a

286 rmed the following day, and findings from CT colonography were disclosed for each segment.

287 Supine and prone CT colonography were performed after colonic insufflation w

288 ere 5 mm and larger, images obtained with CT colonography were retrospectively analyzed by one author

289 No cancers were missed at CT colonography when both cathartic and tagging agents were

290 6 adults (mean age, 57.1 years) underwent CT colonography, which yielded 2606 nondiminutive (>/=6 mm)

291 verage- and high-risk patients undergoing CT colonography will be found to have clinically important

292 Polyps were measured at CT colonography with 2D MPR and 3D endoluminal displays and

293 lonic neoplasia underwent nonlaxative PET/CT colonography with barium fecal tagging within 2 wk of sc

294 tions of polyps at computed tomographic (CT) colonography with computer-aided detection (CAD).

295 on Dual-contrast spectral photon-counting CT colonography with iodine-filled lumen and gadolinium-tag

296 Prone and supine CT colonography with same-day optical colonoscopy was perfo

297 cificity was observed: The specificity of CT colonography with unassisted and that with CAD-assisted

298 The sensitivity of CT colonography with unassisted reading and that with CAD-a

299 ated adequate cleansing effectiveness for CT colonography, with better tagging and shorter interpreta

300 CT colonography without bowel preparation is a safer and be